BMW E83 X3 coding list

Before you code

• Both apps need a supported OBD adapter plugged into the port in the driver's footwell; not every adapter works with every car, and some newer G-series modules can only be reached with specific adapters (BimmerCode quick start, BimmerCode FAQ).
• Coding restarts the module you changed, so the car can show warning messages for a moment. BimmerCode says these clear after switching the ignition off and on again (BimmerCode FAQ).
• Keep the backup the app makes before you code. BimmerCode says coding data can be restored from it if a connection drops, but that misuse of expert mode can leave a module needing a reflash (BimmerCode FAQ).
• Some modules have known faults: BimmerCode refuses to code certain FRM footwell modules that have a corrupted boot sector, and on some cars the body domain controller (BDC) can stop responding until the 12 V battery is disconnected for a few minutes (BimmerCode FAQ).
• The lists below are the apps' published lists. What your car actually offers depends on its modules, software level and factory options; the free version of BimmerCode reads the car and shows what is available before you pay (BimmerCode quick start).

Areas

Alarm System 15 Cleaning 12 Comfort Functions 6 Coming Home 10 Flash to Pass 1 Headlight Cleaning 5 Interior Lights 6 Locking 15 Mirrors 3 Opening 10 Power Windows 11 Sidemarker 1 Tail gate/Rear lid 3 Turn signals 6

Easy: One setting; change it and you are done. Two-step: Works only together with a second, paired setting (often in another module); the note says which. Only if equipped: Needs hardware the car must already have from the factory. Retrofit: Only after the matching hardware has been fitted. Difficulty is our grouping, based on the app's own description of each setting.

Alarm System

Cleaning

Comfort Functions

Coming Home

Flash to Pass

Headlight Cleaning

Interior Lights

Locking

Mirrors

Opening

Power Windows

Sidemarker

Tail gate/Rear lid

Turn signals

What we left out

The apps also list settings that switch off or weaken safety equipment or lighting that US law requires, or that only make sense in other markets. We don't list them. For the E83 that is:

• Bulb-failure monitoring, lamp warnings and LED-bulb conversion (36)
• Brake lights used for welcome, follow-me-home, running-light or side-marker functions (1)
• Fog lights as running lights or with high beams (lighting-law issue in many US states) (1)
• Switching off or dimming US side-marker lights (required on US cars) (1)

Sources

1. Carly: coding for the BMW x3, E83 (2003 - 2010) tab
2. BimmerCode FAQ
3. BimmerCode quick start guide

Setting names, choices and modules are as the apps publish them, retrieved 2026-10-18. We have no relationship with either app and don't earn anything if you buy one.